Process for preparing catalytic agent for hydrogenating hard oils



UNITED" STATES OFFICE.

KAN-ESUKE KIMURA, 0F KOBE, JAPAN.

No Drawing.

To all whom it may concern:

Be it known that I, KANESUKE KIMURA, a subject of the Emperor of Japan,residing at No. 2 Hakayama, Higashi-Shiri-Ike Mura, Kobe, Japan,engineer, have invented certain new and useful Improvements in Processesfor Preparing Catalytic Agent'for Hydrogenating Hard Oils, of which thefollowing is a specification.

The present invention relates to the hydrogenating of oils by the use ofnickel as a catalyst.

The invention has for its object the manufacture in a simple andeconomical manner of a catalytic agent which can be produced from anydesired nickel salt and is of relativel high efliciency owing to thefact that ital ows of the reduction process being per formed at arelatively low' temperature.

With this object in view the present invention consists in thepreparation of a nickel I catalytic agent, the invention beingcharacterized by the fact that a nickel salt is mixed with anincombustible or inert and non-catalytic substance, such as powderedasbestos or infusorial earth, and the mixture is heated while ammoniagas, gaseous ammonium chlorid, is passed through it.

In preparing a catalytic agent according to the present lnvention, anickel salt-such as nickel nitrate, nickel sulfate, nickel chlorid,nickel. formate, nickel acetate, or nickel oxalate-isfirst reduced tovery fine powder; and the powdered salt thus obtained is thoroughly.mixed with an incombustible and non-catalytic substance, such, forexample,

as powdered asbestos, diatomaceous or in-' fusorial earth, or pumice.The mixture, after being dried, is passed into a vessel of iron, nickel,glass, quartz, or othermaterial.

which effects no catalytic action whatever,

in which vessel it is heated while ammonia parts of feet that it forms acolorless vapor at gas, gaseous ammonium chlorid, in gaseous form ispassed through it; Pure ammonia gas can be used with effect, butammonium chlorid gas is to be preferred in view of the proximately 450degrees C. V

- In the carrying of the present invention into effect in' oneconvenient manner, 493

owdered nickel nitrate are thoroughly mixed with 100 parts of powderedumice. The vessel in which the mixture 18 treated, and which is of amaterial ashereinbefore specified, is connected by a leading pipe with agenerator of ammonium-chlorid vapor; The vessel is heated from outSpecification of Letters Patent.

Patented J an, 6, 1920.

Application filed August 1, 1917. Serial No. 183,982.

side to a suitable temperature by the use of a steam jacket or othersuitable means, and an agitator, provided in the vessel, is caused torotate continuously while the vapor of ammonium chlorid is passedthrough the leading pipe into the vessel, with the result that thenickel salt is reduced to a powdered nickel ready for u'se, as acatalytic agent, in the subsequent process for hardening fatty oils.

In this hardening process the powdered nickel, together with a fatty oilis passed into a machine which is provided with a steam jacket or othersuitable heating contrivance. This machine is provided with an into themachine by meansof a leading pipe.

The agitator, which is provided with a net,- made of a metal such asiron, copper, nickel, silver or platinum, is rotated rapidly,developing. a centrifugal force which effects the perfect commingling ofthe contents of the machine and thereby produces a saturated fatty oil.

The catalytic agent obtained by means of the vapor current of ammonia,ammonium chlorid in accordance with my present, invention can act at arelatively low tempera.- ture, and its use is therefore conducive tohigh efliciency. Moreover, any nickel salt may arbitrarily be chosen.for use in' my process, which is not the case in processes heretofore inuse. The utility of my invention will therefore be evident.

ascertained the nature of my said invention and in what manner the sameis to be performed, I declare that what I claim is The process ofpreparing anickelcatalytic agent for hydrogenating oils, consisting inmixing wdered nickel nitrate with powdered pumlce, charging the mixtureinto a vessel of a material which elfects no catalytic action with suchmixture, heating said W. EBIHARAH,

' A. an.

